Home / 131,198.72-181,070.18-73,859.54

Finding the Fourth Proportional to 131,198.72, 181,070.18 and 73,859.54

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Solution

The fourth proportional to 131,198.72, 181,070.18 and 73,859.54 is: 101,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,198.72 : 181,070.18 = 73,859.54 : x
  2. Step 2: Convert to fraction form
    131,198.72/181,070.18 = 73,859.54/x
  3. Step 3: Cross multiply
    131,198.72x = 181,070.18 × 73,859.54
  4. Step 4: Simplify right side
    131,198.72x = 13,373,758,927.87
  5. Step 5: Solve for x
    x = 13,373,758,927.87/131,198.72
  6. Step 6: Final answer
    x = 101,935.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.